[SBE] audio problem

[Robert Combs]

I had a similar problem years ago when a PD was making his own remixes at
his house and emailing them to himself as a MP3. The processing he was using
at home made everything sound super in the monitors, but on the air, they
sounded like crap (technical term). I found that his processing opened up
the frequencies so well that when it was compressed to a MP3 and then run
through our station processing again with compression that it distorted the
audio and caused us to even lose several frequencies all together.

-----Original Message-----
From: sbe-bounces at sbe.org [mailto:sbe-bounces at sbe.org] On Behalf Of Albert
Muick
Sent: Wednesday, August 22, 2007 11:16 AM
To: Michael Holmes
Cc: sbe at sbe.org
Subject: Re: [SBE] audio problem

Hi Mike,
   
  Well, it seems your elaboration rules out phasing issues.  It sounds more
and more like something in the stations' chains is re-processing your audio
and causing the distortion.
   
  How many stations does this affect?  Does it affect every station you
produce for?  What type of stations are these:  talk, rock, hip-hop,
classical, etc?  This gives further clues as to processor setting issues.
   
  I don't think it's an issue of being racked up next to a CD burner or
digital reverb, and I don;t believe any "inaudible something" has been added
to your recording.  If that was the case, you would probably hear it on
studio monitor playback as well.
   
  The fact that it's OK in studio monitors but sounds bad off-air, indicates
to me that perhaps it is re-processing.  This is something the individual
stations could trace out on their end by checking through their chains to
find exactly where the troubles begin.  I would suspect that everything's OK
up to their transmission audio processing equipment.
   
  I know Mr. Ruhwiedel also responded to you and it would be wise to check
his suggestions as well.  I have copied the group on this email so everyone
can follow the discussions.
   
  Kind regards,
  Al

Michael Holmes <admaker at ntelos.net> wrote:
          Albert,
      Thanks for replying!
      My I/O's are all L/R consistent.  When the device is out of the chain,
I mean that it is externally bypassed.  
      Something occurred to me last night:  The device's manual says not to
rack it near amps or digital gear.  Well, I've always had it next to either
a CD burner or a digital reverb.  I've heard nothing untoward as a result so
have figured it was okay.  Is it possible that a digital device or an
amplifier could impart some inaudible 'something' that would picked up by
station processors and cause audible distortion?  The distortion sounds
pretty much like an overdriven preamp, though my levels are all good and
don't change when the Vitalizer is out of the circuit (and everything sounds
good on the air).  Thoughts?
      Thanks again, Al.
  Best,
  Mike Holmes
  540.433.0490
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